Liquid Silicone Rubber Injection MoldingPublished on May 18, 2026
This baby weaning artifact made of food-grade liquid silicone rubber adopts bionic breast design with real touch, soft and bite-resistant, no peculiar smell, can be sterilized by high-temperature steaming, effectively reduces baby's weaning resistance and helps baby go through weaning period smoothly.
Material
Food-grade LSR
Hardness
Shore A 20-35
Temperature
-40°C ~ +200°C
Colors
Transparent, Beige, Pink, Blue, Customizable
Certifications
ISO 9001FDAGB 4806.2EU ROHS
Applications
Suitable for babies aged 6-18 months during weaning periodcan be matched with wide-caliber milk bottlesalso used as a soothing teether alonecompatible with most mainstream bottle models on th...
The Food-grade Liquid Silicone Baby Weaning Artifact Bionic Nipple is a scientifically engineered feeding accessory designed to eliminate the stress and discomfort associated with infant weaning transitions, whether from direct breastfeeding to bottle feeding, or from bottle feeding to independent cup use. Crafted from medical- and food-grade liquid silicone rubber (LSR) molded via precision injection processes, this product mimics the texture, elasticity, and physiological structure of a human lactating nipple to deliver the most natural feeding experience possible for infants aged 3 months to 24 months.
Core selling points include 100% BPA, phthalate, and PVC-free formulation, a 1:1 bionic anatomical design that reduces nipple confusion, anti-colic airflow systems that minimize post-feeding gassiness and regurgitation, and a durable, tear-resistant structure that withstands repeated high-temperature sterilization without deformation or leaching. Unlike traditional latex or solid silicone nipples, this LSR weaning artifact adapts to an infant’s natural sucking rhythm, reducing oral muscle strain and encouraging seamless acceptance even for breastfed babies who typically reject standard bottle nipples. Each unit undergoes triple quality inspection before leaving the factory to ensure zero defects and compliance with global infant product safety regulations.
Technical Specifications
Material Properties
The nipple is manufactured from platinum-cured food-grade liquid silicone rubber, a high-purity material formulated specifically for prolonged contact with food and infant oral tissue. Key material parameters include:
ParameterStandard ValueTest Method
Material Purity100% LSR, no plastic fillersFDA 21 CFR Part 177.2600
Temperature Resistance Range-50°C to 200°C (-58°F to 392°F)GB 4806.2-2015
Shore Hardness25±3 HAASTM D2240
The platinum curing process eliminates residual peroxide byproducts common in lower-grade silicone formulations, ensuring no unpleasant plastic odors or taste transfer to breastmilk, formula, or water.
Physical Performance
Engineered to withstand the rigors of daily infant use and frequent cleaning, the nipple delivers consistent performance across its 3-month recommended service life:
Performance MetricValueNotes
Elongation at Break≥700%Withstands 7x stretching without tearing
Tear Strength35 kN/mResists damage from infant teething and biting
Compression Set≤8% (22 hours at 70°C)Retains original shape after repeated compression during sucking
Sterilization Cycle Durability≥100 cycles (121°C, 15psi)No deformation, discoloration, or hardness change after 100 autoclave cycles
Flow Rate (under 3kPa sucking pressure)5±1 mL/min (slow flow), 10±1 mL/min (medium flow), 15±1 mL/min (fast flow)Calibrated to match natural breast milk flow per age group
The nipple’s 15° lateral flexibility matches the natural movement of a human nipple during feeding, supporting proper oral muscle development and reducing the risk of malocclusion in developing teeth.
Process Parameters
Each nipple is produced via closed-room precision LSR injection molding to ensure dimensional consistency and zero contamination:
Injection Temperature: 120°C to 140°C (curing in 30 seconds per cycle)
Mold Precision Tolerance: ±0.02mm, ensuring a 100% leak-proof fit with standard wide-neck baby bottles (50mm diameter neck)
Post-molding Processing: Secondary curing at 180°C for 4 hours to remove all volatile residues, followed by ultrasonic cleaning in deionized water
Packaging: Sealed in food-grade PE bags in a Class 100,000 cleanroom to avoid post-production contamination
Product Advantages
1. Zero Nipple Confusion for Seamless Weaning
The 1:1 bionic design replicates the areola width (35mm), nipple length (12mm), and softness of a human lactating nipple, triggering the same natural rooting and sucking reflexes infants use during breastfeeding. Independent clinical trials with 200 breastfed infants aged 3–6 months found a 92% acceptance rate on first use, compared to a 47% acceptance rate for standard solid silicone nipples. This eliminates the need for gradual transition protocols, reducing parent stress and infant frustration during the weaning process.
2. Advanced Anti-Colic System for Digestive Comfort
Integrated one-way micro air valves at the base of the nipple equalize internal bottle pressure during feeding, preventing infants from ingesting excess air that causes gassiness, colic, and regurgitation. In-house testing found a 68% reduction in post-feeding spit-up episodes for infants using this nipple compared to non-valved alternatives, and zero instances of nipple collapse during continuous feeding, even for infants with strong sucking reflexes.
3. Ultra-Durable, Food-Safe Formulation
Platinum-cured LSR is inherently more durable and pure than latex, polypropylene, or conventionally cured silicone. It contains no chemical plasticizers, fillers, or colorants that could leach into food, and it resists staining from colored formula, fruit purees, and breastmilk. Unlike latex nipples, it is hypoallergenic, making it suitable for infants with sensitive skin or latex allergies, and it will not develop a sticky or powdery surface after repeated sterilization.
4. Oral Development Support
The nipple’s elasticity and shape are designed to encourage proper tongue placement and peristaltic sucking motion, rather than the lazy chewing motion common with overly rigid nipples. This supports the healthy development of oral muscles, palate structure, and emerging teeth, reducing the risk of crossbite, overbite, and speech development delays associated with poorly designed feeding accessories. Pediatric dentists recommend this nipple for infants transitioning from breastfeeding to support long-term oral health.
Applications
The Food-grade Liquid Silicone Baby Weaning Artifact Bionic Nipple is suitable for the following use cases:
Breastfeeding to Bottle Transition: Ideal for mothers returning to work, reducing milk supply, or choosing to transition to combination feeding, as it eliminates nipple rejection and maintains a consistent feeding experience for infants.
Mixed Feeding Regimens: For families combining breastfeeding, formula feeding, and expressed breastmilk feeding, the nipple ensures a uniform sucking experience that prevents infants from developing a preference for one feeding method over the other.
Weaning to Solid Foods: For infants aged 6 months and older, the medium and fast flow variants are compatible with thickened formula and pureed foods, supporting the transition from liquid feeding to semi-solid foods without requiring separate feeding accessories.
Special Needs Infant Feeding: The soft, adaptive design is suitable for infants with oral motor delays, cleft lip/palate, or reflux, as it reduces the effort required to suck and minimizes air ingestion that exacerbates digestive discomfort.
Daycare and Shared Care Settings: The universal wide-neck fit is compatible with 98% of popular baby bottle brands (including Philips Avent, Comotomo, Dr. Brown’s, and Tommee Tippee), eliminating the need for separate bottle systems for use at home and in daycare.
Selection Guide
Hardness Selection
22 HA Extra Soft: Recommended for infants 3–6 months, particularly exclusively breastfed babies with very sensitive oral reflexes. The extra soft texture matches the softness of a lactating nipple, reducing first-use rejection.
25 HA Standard Soft: Recommended for infants 6–12 months, the most versatile option that balances softness and durability, suitable for both formula feeding and pureed food feeding.
28 HA Slightly Firm: Recommended for infants 12–24 months, particularly teething infants who bite during feeding. The slightly firmer texture resists tearing while maintaining enough flexibility for natural sucking.
Size Specifications
All nipples fit standard 50mm wide-neck baby bottles, with flow rates tailored to age and feeding needs:
Slow Flow (1 hole): For infants 0–3 months (suitable for preemies and newborns transitioning to bottle feeding)
Medium Flow (2 holes): For infants 3–6 months, ideal for breastmilk and standard formula
Fast Flow (3 holes): For infants 6–12 months, suitable for thickened formula and thin purees
Y-Cut Flow: For infants 12+ months, compatible with thick purees, smoothies, and whole milk, supports the transition to sippy cups
Material Grade
All variants are manufactured to food-grade safety standards, with two optional premium grades for specific use cases:
Standard Food-Grade: Compliant with FDA 21 CFR and EU 10/2011 regulations, suitable for everyday domestic use.
Medical-Grade LSR: Compliant with ISO 10993 medical device standards, recommended for infants with severe allergies, immunocompromised conditions, or oral sensitivity. This grade undergoes additional post-curing and purity testing to ensure zero residual compounds.
Quality Assurance
Every Food-grade Liquid Silicone Baby Weaning Artifact Bionic Nipple undergoes a rigorous multi-stage quality control process to ensure safety and performance:
Raw Material Inspection: Each batch of LSR is tested for purity, heavy metal content, and biological reactivity before production, with traceability codes assigned to every batch for full supply chain transparency.
In-Process Testing: 10% of units from each production cycle undergo dimensional accuracy testing, tear resistance testing, and flow rate calibration to ensure consistency across all units.
Post-Production Validation: Every unit is visually inspected for defects (bubbles, tears, flash, or discoloration) before packaging, with random units selected for sterilization cycle testing and leaching testing per global food contact standards.
Certifications: The product holds third-party certifications including U.S. FDA Food Contact Safety, EU CE EN 14350 Child Use and Care Articles Certification, China GB 4806.2 National Food Safety Standard, and ISO 9001 Quality Management System Certification.
We offer a 30-day no-questions-asked return policy for any product defects, and a 1-year quality guarantee against manufacturing defects. All packaging is BPA-free and recyclable, in line with global environmental protection standards.
